Photoshop tools and functions to navigate the canvas.
Photoshop tools are roughly categorised into seven different types arranged in the Options bar — which is a lot. But, if you break it down simply, there are only a few classes of tool: ones that help you measure, select and move around your work and ones that help you to modify the pixels on your canvas.
Accessories and assistance to create artwork.
Once you understand how to move and manipulate, you can start drawing, adjusting opacity, brushing, colouring, cutting and pasting.